body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.container {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 600px;
    text-align: center;
}

.navbar {
    background-color: #343a40;
    padding: 1rem;
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar a {
    color: white;
    text-decoration: none;
    padding: 0 1rem;
}

.navbar a:hover {
    text-decoration: underline;
}

.btn {
    margin-top: 1rem;
    padding: 0.75rem 1.25rem;
    font-size: 1rem;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.btn:hover {
    background-color: #0056b3;
}

.alert {
    margin-top: 1rem;
}

.text-danger {
    color: #dc3545;
}
